Desirable Features of a Modern Radiographic Table Consist of Which

Desirable features of a modern radiographic table consist of which of the following?
1) High-attenuation tabletop material
2) Variable height
3) Four-way floating tabletop
4) Radiolucent tabletop
5) Convenient and ergonomic-friendly controls
6) Foot control of table motions

A) 1,2,4,5,and 6 only
B) 2,3,4,and 6 only
C) 2,3,4,and 5 only
D) 1,2,3,5,and 6 only